Body core temperature is an important physiological indicator for self-health management and medical diagnosis. However, existing devices always fails to achieve continuous monitoring of core body temperature due to their invasive or motion-restricted measurement principles. Here, a wearable flexible device which can continuously monitor the core body temperature was developed. The flexible device integrated with fourteen temperature sensors and one thermal conductivity sensor on the polydimethylsiloxane substrate can be conformally attached to the human skin. With the wearable data processing module and wireless communication module, the continuous monitoring of the core body temperature for 24 h and the portable monitoring of the skin thermal conductivity were realized using this device. Owing to the annular distribution design of the temperature sensor and the directional heat transfer design of the thermal conductivity sensor, this device is comparable in accuracy and stability compared to standard instruments that require invasive or motion-restricted measurements.

体芯温度是自我健康管理和医学诊断的重要生理指标。然而，现有设备由于其侵入性或运动受限的测量原理，总是无法实现对核心体温的连续监测。在这里，开发了一种可以连续监测核心体温的可穿戴柔性设备。该柔性设备集成在聚二甲基硅氧烷基材上，由 14 个温度传感器和 1 个热导率传感器组成，可以适形附着在人体皮肤上。借助可穿戴数据处理模块和无线通信模块，该设备实现了核心体温的 24 h 连续监测和皮肤热导率的便携式监测。由于温度传感器的环形分布设计和热导传感器的定向传热设计，与需要侵入式或运动受限测量的标准仪器相比，该设备在准确性和稳定性方面具有相当性。